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Defined Benefits (Tables) | 6 Months Ended
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Jun. 30, 2023
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Schedule Of Net Periodic Defined Benefit Costs (Credits) | Following are the net periodic defined benefit costs (credits) of the plans sponsored by PPL and its subsidiaries for the periods ended June 30:
| Pension Benefits
| Three Months |  | Six Months
| 2023 |  | 2022 |  | 2023 |  | 2022
PPL |  |  |  |  |  |  |
Service cost | $ | 8 |  |  | $ | 13 |  |  | $ | 17 |  |  | $ | 25 |
Interest cost | 48 |  |  | 30 |  |  | 94 |  |  | 62 |
Expected return on plan assets | (77) |  |  | (63) |  |  | (155) |  |  | (127) |
Amortization of: |  |  |  |  |  |  |
Prior service cost | 1 |  |  | 2 |  |  | 3 |  |  | 4 |
Actuarial loss | 1 |  |  | 17 |  |  | 1 |  |  | 29 |
Net periodic defined benefit costs (credits) before settlements | (19) |  |  | (1) |  |  | (40) |  |  | (7) |
Settlements (a) | — |  |  | 12 |  |  | — |  |  | 12 |
Net periodic defined benefit costs (credits) | $ | (19) |  |  | $ | 11 |  |  | $ | (40) |  |  | $ | 5 |
(a)Due to the amount of lump sum payment distributions from the LKE qualified pension plan, settlement charges were incurred during the three and six months ended, June 30, 2022. In accordance with existing regulatory accounting treatment, LG&E and KU have primarily maintained the settlement charge in regulatory assets to be amortized over 15 years.
| Other Postretirement Benefits
| Three Months |  | Six Months
| 2023 |  | 2022 |  | 2023 |  | 2022
PPL |  |  |  |  |  |  |
Service cost | $ | 1 |  |  | $ | 2 |  |  | $ | 3 |  |  | $ | 3 |
Interest cost | 8 |  |  | 4 |  |  | 15 |  |  | 8 |
Expected return on plan assets | (7) |  |  | (6) |  |  | (15) |  |  | (12) |
Amortization of: |  |  |  |  |  |  |
Prior service cost | 1 |  |  | 1 |  |  | 1 |  |  | 1 |
Actuarial loss | (2) |  |  | (2) |  |  | (3) |  |  | (2) |
Net periodic defined benefit costs (credits) | $ | 1 |  |  | $ | (1) |  |  | $ | 1 |  |  | $ | (2) |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 20 -Topic 715 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-3 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-4 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-2 + Details
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